Buccal nerve block (long buccal nerve block) is indicated for procedures involving the mucosa adjacent to the posterior molar teeth, such as the placement of a rubber dam clamp. The injection site is distal and buccal to the third molar, with the needle penetrating 1-2mm as the nerve lies directly below the mucosa.[1] A buccal nerve block is carried out after an inferior alveolar nerve block for specific procedures, such as extraction of mandibular molar teeth.